#3808: command adjustments

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30373 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Make sure circ. def. errors are not lost

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30374 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3883 AnimationStepModel applied to both desktop and web. ReflexAngleModel fix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30375 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e